Hi Ashish! Try for the following things::
-> Check the config file(hadoop-site.xml) of namenode. -> Make sure, the tag(dfs.datanode.addres)'s value you have given correctly it's IP,and the name of that machine. -> Also, check for the name added in /etc/hosts file. -> Check for the ssh keys of datanodes present in namenode's known_hosts file -> check for the value of dfs.datanode.addres on datanode's config file. On Tue, Jun 16, 2009 at 10:58 AM, ashish pareek <pareek...@gmail.com> wrote: > HI , > I am trying to step up a hadoop cluster on 3GB machine and using hadoop > 0.18.3 and have followed procedure given in apache hadoop site for hadoop > cluster. > In conf/slaves I have added two datanode i.e including the namenode > vitrual machine and other machine virtual machine (datanode) ..... and > have > set up passwordless ssh between both virtual machines ..... But now problem > is when I run command : > > bin/hadoop start-all.sh > > It start only one datanode on the same namenode vitrual machine but it > doesn't start the datanode on other machine..... > > in logs/hadoop-datanode.log i get message > > > INFO org.apache.hadoop.ipc.Client: Retrying > connect to server: hadoop1/192.168.1.28:9000. Already > > tried 1 time(s). > > 2009-05-09 18:35:14,266 INFO org.apache.hadoop.ipc.Client: Retrying > connect to server: hadoop1/192.168.1.28:9000. Already tried 2 time(s). > > 2009-05-09 18:35:14,266 INFO org.apache.hadoop.ipc.Client: Retrying > connect to server: hadoop1/192.168.1.28:9000. Already tried 3 time(s). > > > . > . > . > . > . > . > . > . > . > > . > . > > . > > I have tried formatting and start the cluster again .....but still I > get the same error. > > So can any one help in solving this problem. :) > > Thanks > > Regards > > Ashish Pareek > -- Regards! Sugandha
